image: Fig 3. Results of the preference test (vocal behavior). (a, d) Population mean of the frequency proportion plotted against age of testing (the number of individuals of each sex at each age is specified in Table 3). (a) shows the results of calling, while (d) shows the results of singing (only males). A solid line with filled circles indicates female data, and a dashed line with filled triangles indicates male data. The proportion was calculated as the response frequency to the father's song (F) divided by the total response frequency (F + U). (b, c, e) Population mean of the number of trials in which birds vocally responded to either song in the tests conducted at 60 and 120 dph. (b) shows the results of male calling, (c) female calling, and (e) male singing. We used this count data for all individuals (10 males and 10 females) for model fitting. Open bars and grey bars indicate response to the father's song and unfamiliar song, respectively. In all three panels, error bars are 95% confidence intervals. Mean and confidence interval values are summarized in Table 3. view more
Credit: Fujii et al, PLOS ONE 2021 (CC-BY 4.0, https://creativecommons.org/licenses/by/4.0/)
Daddies' girls? Female Bengalese finches prefer their father's song to that of other birds throughout their lives - while sons lose this preference as they grow up.
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Article Title: Sex differences in the development and expression of a preference for familiar vocal signals in songbirds
Funding: This work was supported by MEXT/JSPS KAKENHI Grant, Numbers 17H06380 to KO & 17J07023 to TGF. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. (https://www.jsps.go.jp/index.html)
Competing Interests: The authors have declared that no competing interests exist.
Article URL: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0243811
Journal
PLoS ONE